2 Chronicles 32:30-32

30 This same Hezekiah also stopped the upper spring of the waters of Gihon, and brought them straight down on the west side of the city of David. And Hezekiah prospered in all his works.

31 However in the business of the ambassadors of the rulers of Babylon, who sent to him to inquire of the wonder that was done in the land, God left him, to try him, that he might know all that was in his heart.

32 Now the rest of the acts of Hezekiah, and his good deeds, behold, they are written in the vision of Isaiah the prophet the son of Amoz, in the book of the kings of Judah and Israel.